Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2023

Stockholders' Equity Note [Abstract]

Share-based Compensation, Stock Options, Activity

A summary of employees’ stock options activities during the six months ended June 30, 2023 is as follows:

 

	Six Months Ended June 30, 2023 (unaudited)
	Number	Weighted average exercise price		Aggregate intrinsic value (in thousands)		Weighted average remaining contractual life (years)
Options outstanding as of January 1, 2023	691,573	$	7.533	$	11,347	1.901
Granted	—	$	—
Exercised	(42,971)	$	6.561
Forfeited and expired	(11,235)	$	5.560
Options outstanding as of June 30, 2023	637,367	$	7.633	$	12,121	1.481
Options exercisable as of June 30, 2023	633,920	$	7.644	$	12,048	1.458

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The options outstanding as of June 30, 2023 (unaudited) have been separated into ranges of exercise price as follows:

Range of exercise price				Options outstanding as of June 30, 2023	Weighted average remaining contractual life (years)	Weighted average exercise price of options outstanding		Options exercisable as of June 30, 2023	Weighted average remaining contractual life (years)	Weighted average exercise price of options exercisable
$	5.623	—	6.503	82,342	3.504	$	5.640	78,895	3.401	$	5.639
$	7.000	—	8.077	416,323	1.067	$	7.111	416,323	1.067	$	7.111
		$9.960		120,180	1.647	$	9.960	120,180	1.647	$	9.960
		$13.287		18,522	0.726	$	13.287	18,522	0.726	$	13.287
				637,367	1.481	$	7.633	633,920	1.458	$	7.644

Schedule of Stockholders' Equity Note, Warrants or Rights

The Company’s outstanding options granted to consultants for services as of June 30, 2023 (unaudited) were as follows:

	Number of options outstanding and exercisable as of June 30, 2023	Range of exercise price per share					Exercisable through
August 2013 - February 2016	21,150	$	5.623	—	$	13.287	August 2023 - February 2026

Schedule of Share-based Payment Arrangement, Restricted Stock Unit and Performance Stock Unit Activity

A summary of RSUs and PSUs for employees, consultants and non-employee directors of the Company for the six months ended June 30, 2023 (unaudited) is as follows:

 

	Number of shares underlying outstanding RSUs and PSUs	Weighted- average grant date fair value
Unvested balance - January 1, 2023	8,340,732	$	41.82
Granted	3,630,416	$	28.25
Vested	(2,869,874)	$	40.12
Forfeited	(491,040)	$	40.76
Unvested balance – June 30, 2023	8,610,234	$	36.73

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The Company recognized stock-based compensation expense in the condensed consolidated statements of operations as follows (in thousands):

 

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(unaudited)				(unaudited)
Cost of revenues	$	2,030	$	3,015	$	4,530	$	6,102
Research and development	13,634		13,638		26,157		26,238
Sales and marketing	13,898		13,568		26,660		26,664
General and administrative	9,822		7,537		17,848		14,752
Total	$	39,384	$	37,758	$	75,195	$	73,756